查询词典 essential element

Cadmium is a bivalent, non-essential trace element and considered as one of the most phytotoxic heavy-metal contaminants.

本文综述了藻类对重金属的耐性与解毒机理，在此基础上研究了铜绿微囊藻生长和光合作用对Cd浓度增加的响应。

The color design of the nature indoor environment become a the very important is inside space design of the chemical element of essential to have.

自然室内的环境色彩设计成为很重要的一个空间内设计的必不可少的元素。

Part of the findings shows the composition of pythoncidere is similar to that of the steam-distilled Cryptomeria japonica essential oil, based upon which an experiment about the Cryptomeria japonica essential oil's effect on animals is conducted. This leads to a further finding that the major element of terpene "limonene"is quite effective to central nervous system, and it can be hypnotic, anxiolytic and analgesic.

该研究还发现芬多精的组成与利用水蒸气蒸馏的柳杉精油的成分相类似，於是进一步以柳杉精油进行动物试验，发现了柳杉中的芬多精及其主要的萜类成分－「柠檬烯」，对动物中枢神经系统有相当大的影响，而且具有安眠、抗焦虑及镇痛的功效。

In the dissertation, meshless element free Galerkin method which utilizes moving least square is used for solving heat transfer problems. Lagrange multiplier method is used to deal with the essential boundary condition. Some parameters in element free Galerkin method, which influence the precision, are also discussed in the numerical simulation. The adaptive method of meshless method is also stated.

本文采用了基于移动最小二乘近似的无网格伽辽金法计算了热传导问题，采用拉格朗日乘子处理本征边界条件；讨论了无网格伽辽金法各个计算参数在数值模拟中对计算精度的影响；并对无网格的自适应方法进行了研究。

Based on the good essential boundary condition processing capability of radial point interpolation meshless method, as well as the better computing efficiency of Element-free Galerkin method, the mixed method coupling EFG and RPIM is used to deal with the essential boundary condition.

基于径向基点插值无网格方法良好的本质边界条件处理能力，以及无网格伽辽金方法较好的计算效率，应用混合元法耦合两种无网格方法进行了本质边界条件的处理，数值算例结果表明：混合元法简明有效，计算概念清晰，易于编程计算。

Element-free Galerkin Method is a effective method for solving partial differential equations with the help of shape functions coming from moving least squares approximation. It is well-suited to problems involving large deformation and crack propagation etc on which Finite Element Method can not be used easily. But EFGM is computationally expensive and it is hard to impose the essential boundary condition. Coupling the EFGM and FEM can fetch up the defect of EFGM and improve the efficiency highly.

无网格伽辽金法是基于移动最小二乘法的一种用来求解偏微分方程非常有效的方法，在处理诸如高度大变形、裂纹动态扩展等有限元法较难解决的问题时有其独特的优势，但是存在处理边界条件复杂，计算量大的不足，将无网格法同有限元耦合可以解决这些缺点，极大的提高计算效率。

It explains mainly essential techniques on the mechanical overall aspect on binary optical element's laser direct lithography equipment which has been manufactured by us. Simultaneous, it still gives the essential technology indexes and development state of slideway, transmission systems, round journal and focusing servo.

重点介绍了长春光机所研制的二元光学元件激光直接写入设备中机械总体方面的主要关键技术，给出了导轨、传动系统、回转轴系、调焦伺服机构的主要技术指标和完成情况。

So it can be essential momitoringindex of colon carcinoma and its tumor specificness is apply by manygene therapy of tumor. Transcriptional regulatory element of CEAcontains enhancer element and promotor in the 5th flanking region whichcan control expression of objective gene in positive cancer tissue of CEA. Objectives: To explore the joint promoter with high activity,consisting CEA promotor and CMV enhanser.

目的：本课题探讨由CEA启动子、CMV增强子组成的高活性嵌合启动子，通过融合启动子的调控提高融合自杀基因yCDglyTK在靶细胞表达的特异性；并以无毒副作用生物相容性好的磷酸钙纳米为载体，将该自杀基因靶向导入结肠癌细胞中，以达到提高基因治疗靶向性及安全性的目的。

Pass questionnaire to investigate, the method that degree of taller pay element; approbates to be analysed with statistic in can understanding people memory can undertake classified to the structure of pay element, in order to choose significant pay essential factor, the practice that directive post evaluates.

通过问卷调查，可了解人们心目中认可度较高的报酬要素；用统计分析的方法可对报酬要素的结构进行分类，以筛选有效的报酬要素，指导岗位评价的实践。

Between 10,000 and 15,000 tonnes of Camembert are produced in Normandy every year, and it remains one of the country's most popular cheeses – two-thirds of French cheese buyers still consider it an essential element of any self-respecting cheeseboard.

每年软制乳酪的产量都在1，000至5，000公吨之间。时至今日，它还是全国最受欢迎的奶酪品种之一。三分之二的法国购买者仍认为软制乳酪是备受青睐的奶酪食品中的一项基本原素。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了